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The equation of a line is 3x+4y-10=0. Co...

The equation of a line is `3x+4y-10=0`. Convert this equation into :
`(i)` slope-intercept
`(ii)` intercept
`(iii)` perpendicular form

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`(i) 3x+4y-10=0`
`implies 4y=-3x+10`
`implies y=-(3)/(4)x+(5)/(2)`
Comparing with `y=mx+c`
Slope `m=-(3)/(4)`, `y-` intercept `c=(5)/(2)`
`(ii) 3x+4y-10=0`
`implies 3x+4y=10`
`implies (3x)/(10)+(4y)/(10)=1`
`implies (x)/((10)/(3))+(y)/((5)/(2))=1`
Comparing with `(x)/(a)+(y)/(b)=1`
Intercept on `X`-axis `='a'=(10)/(3)` units.
Intercept on `Y`-axis `='b'=(5)/(2)` units.
`(iii) 3x+4y-10=0`
`implies 3x+4y=10`
(Taking constant term positive)
Divide both sides by `sqrt(3^(2)+4^(2))=5`
`(3)/(5)x+(4)/( 5)y=2`
Comparing with `x cos alpha+y sin alpha=p`
`cos alpha=(3)/(5)`, `sin alpha=(4)/(5)` and `p=2` units
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NAGEEN PRAKASHAN-STRAIGHT LINES-Exercise
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  3. At which point the origin should be shifted such that the new co-ordin...

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  5. Find the point at which origin is shifted such that the transformed e...

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  6. Find the point at which is shifted such that the transformed equations...

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  7. Find the point at which origin is shifted such that the transformed eq...

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  8. Show that the area of triangle whose vertices are (1,0), (2,4) and (3,...

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  9. Find the slope of the lines whose iclination is given : (i) 45^(@) (...

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  10. Find the inclination of the lines whose slopes are as follows : (i) ...

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  11. Find the slopes of the lines passing through the following points : ...

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  12. If the slope of a line passing through the points (1,4) and (x,2) is 2...

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  13. If the angle of inclination of line joining the points (x,3) and (-2,5...

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  14. If the slop of line joining the points (6,-3) and (x,7) is 2, find the...

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  15. Show that the line joining the points (4,-1) and (-3,3) is parallel to...

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  16. If the line joining the points (5,y) and (4,9) is parallel to the line...

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  17. Show that the line joining the points (4,-3) and (0,7) is perpendicula...

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  18. If the line joining the points (6,-2) and (8,4) is perpendicular to th...

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  19. Without using Pythagoras theorem, show that A(4,4),\ B(3,5)a n d\ C(-1...

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  20. Using slopes, show that the points A(0,5), B(3,2) and C(-1,6) are coll...

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  21. Using the slope of line, show that the points (-1,-2), (0,4), (3,3) an...

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